24/04/2023
Since I keep seeing way too thick snakes whose holders often think they are in a good nutritional condition, here's a small reminder of how the fat deposits are placed in the body and in what order they are expanded (picture 1).
The second photo schematically shows the body cross-section with appropriate orientation to the nutritional status.
If your snake has already formed fat deposits to the right and left of the spine (the so-called "fat U", i.e. elevations next to the spine that make the spine appear lying as if in a day), then this animal is already considerably overweight!
On the other hand, if the spine is visibly visible when lying relaxed without the back curved upwards, the animal can take more food or should (if fed regularly enough and in a sufficient size) be urgently examined for parasites and diseases.